The Word is:”not”

not

/nɒt/

adverb

adverb: not

1. used with an auxiliary verb or ‘be’ to form the negative.
“he would not say”

  • used in some constructions with other verbs.
    “he has been warned not to touch”
  • 2. used as a short substitute for a negative clause.
    “maybe I’ll regret it, but I hope not”

    3. used to express the negative of other words.
    “not a single attempt was made”

  • used with a quantifier to exclude a person or part of a group.
    “not all the poems are serious”
  • no more than (used to indicate a surprisingly small quantity).
    “the brakes went on not ten feet from him”
  • 4. used in understatements to suggest that the opposite of a following word or phrase is true.
    “the not too distant future”

  • informal humorous
    following and emphatically negating a statement.
    “that sounds like quality entertainment—not”
  • noun Electronics
    noun: not; noun: NOT

    1. a Boolean operator with only one variable that has the value one when the variable is zero and vice versa.
    a circuit which produces an output signal only when there is not a signal on its input.
    plural noun: nots; noun: not gate; plural noun: not gates

    adjective

    adjective: Not; adjective: not

    1.Art
    (of paper) not hot-pressed, and having a slightly textured surface.

    Source credit: Google